Publications (12)
Phonon-mediated mid-infrared photoresponse of graphene
Michela Badioli, Achim Woessner, Klaas-Jan Tielrooij +5
The photoresponse of graphene at mid-infrared frequencies is of high technological interest and is governed by fundamentally different underlying physics than the photoresponse at…
On-chip polarization rotator for type I second harmonic generation
Eric J. Stanton, Lin Chang, Weiqiang Xie +12
We demonstrate a polarization rotator integrated at the output of a GaAs waveguide producing type I second harmonic generation (SHG). Form-birefringent phase matching between the p…
300 GHz wave with attosecond-level timing noise
Tomohiro Tetsumoto, Tadao Nagatsuma, Martin E. Fermann +3
Optical frequency division (OFD) via optical frequency combs (OFC) has enabled a leap in microwave metrology leading to noise performance never explored before. Extending the metho…
Image sensor array based on graphene-CMOS integration
Stijn Goossens, Gabriele Navickaite, Carles Monasterio +13
Integrated circuits based on CMOS (complementary metal-oxide semiconductors) are at the heart of the technological revolution of the past 40 years, as these have enabled compact an…
Low phase noise THz generation from a fiber-referenced Kerr microresonator soliton comb
Naoya Kuse, Kenji Nishimoto, Yu Tokizane +5
THz oscillators generated via frequency-multiplication of microwaves are facing difficulty in achieving low phase noise. Photonics-based techniques, in which optical two tones are…
Near-field photocurrent nanoscopy on bare and encapsulated graphene
Achim Woessner, Pablo Alonso-González, Mark B. Lundeberg +14
Opto-electronic devices utilizing graphene have already demonstrated unique capabilities, which are much more difficult to realize with conventional technologies. However, the requ…